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Priority claimed from JP17571192Aexternal-prioritypatent/JP2710520B2/ja
Priority claimed from JP30554192Aexternal-prioritypatent/JP3387945B2/ja
Priority claimed from JP32687092Aexternal-prioritypatent/JP3280722B2/ja
Priority claimed from JP2539093Aexternal-prioritypatent/JP2899495B2/ja
Application filed by Ishitsu Seisakusho KkfiledCriticalIshitsu Seisakusho Kk
Application grantedgrantedCritical
Publication of TW219921BpublicationCriticalpatent/TW219921B/zh